Feed-mill governor.



E. HERR.

t, FEED MILL GOVERNOR. APPL'IOATION FILED JUNE 4, 1913.

as provided with.

eil/llene indenni? EDWRE HERR, OF BUTLER, SOUTH DAKGTA.

IFEED-MLL GQVERNOR.

Vfrom being speeded to an undeeiiableextentby an under supply of griet,the invention consisting in the construction, combination andarrangement of devices hereinafter described and claimed.

ln tlie accompanyiiie diawinge:-ll`iguie,

l is partly en elevation and paitlya sectiene-.l View of o griet feedgovei'noi' and bui adjusting mechanism eonstiuzted in accordance with myinvention, elioiifing the saine in connection Witli a, feed mill,` aportion of tlie hopper end stationary and running is of which areliagiainmetieally repro u E5 is a detail-sectional View of i the planeindicated by the line il. 3 is a similar View on. the plane nl icated bythe line ,5*5 of l i is a, siinilai View on tlie plane inthe line o o ofFig. l. e purposes of this specieetion, tlie olZ feed inill adapted tobe ener small engine or othei ino'gor of nioder'eto powei' is indicatedat l, t-lie de oligrge opening oi:l the hopper at the soif i ,our 'at 3and the running" our :it Il, llie easingwall :3 of the hopper bei iff*shown l an intake duct oi' trough 6 on arm T which' projects from one asay bearing in a sleeve 9 which is tornio-fl 'lie outer end of tlietrough (i, lie said sleeve being; l'novided with o tlifead l0 'whichextends a suitable disfrom ite outer end. ,That anni l beyond-theti'ougli ou? hollow one has a lined. plete plate and guided loe Hollowportion oit the which is Unthreadi'i follower l2' is aifv Specication ofLetters Patent.

mill, as will be understood. is engaged by e Worm l5 the shaft of whichlla'tented Feb. 24, 1914,

application me@ rung 4, i913. serial No, mms.

move longitudinally` on the said bearing sleeve. y

A Worm gear i3 9 and bears against the outer side 0i" the follower. Acoiled extensile sp1-ing* le' is ai'- ranged in the hollow portion ofthe arm and bears between the follower and the outer' end of the feedduct or trough 6, the spring acting through the instrumentality of thefollower and the Worin gear 13 on tlie Sleeve to press the stationarybur agaiiiet the running,A befand, hence, in effect the Said Woim gearby reason oic its being threaded on the beaiing sleeve 9 is an adjustingnut for the llliis Worin gear 1s mounted in fixed bearings indicated et16' and is' provided with a creek l? whereby tlie Worin may be turned tocause the worin goei. to turn and, hence, adjust the louis oie theinill, ae be required.

' B31 elle provision of 'die worm gear which seni/'ee es an adjusing:out for the mill burs c and the provision or" the Worin which engagesend opeiates the said Worin gear there will lie no tendency oi theadgusting elelly after hei/'ing been adjusted, and, hence, theinill willnot casually get out'of adjustment when provided with my improved adjusting Worin gear andwoi'ni.

The valve 18 Wliieli regulates the passage of tliiougli the dischargeopeningof 'die hopper into the doet 6 and for engagement by able slidetelve oi plete 18 which is ai'ianged en the eide of the plate 1l whichcovers tlie hollow poiftioii of the arm 7 and this leed 'valve isprovided with two pairs of spaced upwaidly extending .lugs or ears 2O onits upper eide, and Wliieli zi piaetice, are piefeiably integraltliei'ewith.v

The bai' 2l ie aiienged between the eats 2O and liao a, seriescladiusting openings ond pins or bells certain of said openings andtluougli openf ings in the of ears oi logs 20, so that the Said leal'fiietzilily connected to the valve i8, as w lood, A- oe outei.' endo'ftlie --tuined aim @d terminating i elle 0M which sul)i etantiallyepli: t? .is mounted for evolution.

i coller 26 je enlined on tle .e rotation tlieewiti.

it E foi' ...l nieveis threaded on the sleeve',

the 'feed screw i9 Willi which the 'allait 8 le provided ie alongitudinally mpv- 4nienta to witi the Worm gear i3 to turn cesupassedtliiong'li l ings L1:0 of the long arms of the bell crank '-J levers.

hence, fcause the bar 21 to' move therewith.

,eral annular groove 27 in which the roller 'provided with diametricallyopposedpairs vthe inner'pends of a pair of links .the driving pulley and'operates in one of rthirty-tive degrees with,

`adapted 'to be securedito the said arms of the 35 ment thereon and isprovided ivith a periph-v 25 operates, the outer side of the collarbeing of spaced lugs 28 between which are plvoted y 29 on pins 30.

The driving pulley 31 has a tubular hub 32 which is keyed or otherwisefirmly secured to the shaft 8. The spokes 33 of the said pulley are hereshown as at one side thereof, the side nearest the collar 26, and two ofthese spokes which are arranged diametrically opposite each other areprovided with 'radial slots 34 in which are arranged apair of bellvcrank levers 35, the pivots of the said levers bcing'indicatcd at 36.Each of these bell crank levers has a short arm 3i" which issubstantially radia'l with respect to thev slots 33, the inner ends-ofthe said arms being pivotally connected as at 3S `to the outer `endv 'ofthe llinks 29 and, hence, the bell crank levers are directly connectedto thecollar-26.- Each bell crank lever also has a. long arm 39Which isat an angle of about respect to the shorter arm and is provided with aseries of openings 40. These long arms 39 of the bell crank leversvnormally converge toward theouter side'of the driving pulley and on thelong arm of each bell crank lever is an adjustable weight 4l, the saidWeights being hell crank levers by pins or other suitable devices' 42which pass therethrough and which may be arranged in any ofthe open` Acoiled spring 43 is arranged on the shaft 8 and bears between the pulleyand the collar 26`and exerts its tension to push the collar inwardlytowzi'd the mill 21nd,'

and close the valve 18.

WVhen; the 'mill is not in operation, the

valve 18 is closed by theaction of the spring 43 and its connections. When the mill is 1 noname operation, the bell crank levers are movedcentrii'ugally by the Weights 4l and caused to dravv the collar 26outwardly, against the tension of the spring 43' and-to open the Avalve18 to an extent dependent upon the speed of revolution 'of the pulley sothat when the speed of the pulley diminishes, as when there has been anoversu ply of ma.- terial to the mill, the valve 18 1s automaticallyclosed to therequired extent tc y .-A

minish the supply vof gist 4and when ne speed of the ulley increasesthevalm 18 is automatical y opened to a corresponding extent so as tocause an increased quantity or" grist to be supplied to the mill. thegovernor operates automatically to regulate the 'supply of. grist'to themill, prevents the 'mill from becoming choked and the engine or motorwhich drives the mill from becoming overloaded or stopped.,

. I claim In a mill of the class described a casing having an armprojecting therefrom, said arm having its inner portion formed with afeed duct open at the upper side, further provided with a bearing at itsouter end and with a fixed plate on its upper side at its outer end andabove said bearing; a

hopper arranged with its discharge throat above said feed duct and todischarge thereinto,..a feed regulating valve arranged to slide on thefixed plate of the arm of the casing, a driving shaft extending throughthe feed ductV and mounted in said bearing, a governor carried by theshaft and including a movable element, a collar revoluble with andlongitudinally movable on the shaft and connected to the movable elementof the governor.' and a bar adjustably connected to the said valve andhaving an arm engaging the collar.

In testimony whereof I affix my signature in presence of two Witnesses.

EDVAR-D HERR. `Witnesses N. E. BJERKE,

l. E. Banaan.

Hence,

and being

